One-eye 3D images refer to images that appear 3D when you look at them with only one eye. Humans are said to have a binocular parallax where there is a parallax error when looking at something with both eyes, and normal 3D images make use of this. However, the brain tries to capture images as 3D even when looking at them with just one eye. A different parallax error occurs here, and that is how one-eye 3D images are made. It is said that you can make one-eye 3D images by blurring, or adding contrast to the foreground or background of the image, and by using markers to create depth to the image! This time, take a look at the slightly odd one-eye 3D images. Enjoy as you close one eye!